<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Parent Iframe Level</title>
    <style>
        body {
            background-color: #f0f0f0;
            padding: 20px;
        }
    </style>
</head>
<body>
    <h2 id="parent-iframe-heading">Parent Iframe Content</h2>
    
    <div id="parent-iframe-content">
        <p id="parent-paragraph">This is the parent iframe level.</p>
        <input id="parent-input" type="text" placeholder="Parent input">
        <button id="parent-button">Parent Button</button>
    </div>
    
    <div id="nested-iframe-container">
        <h3>Nested Iframe Below:</h3>
        <iframe id="nested-iframe" src="test_iframe_nested_level.html" style="width: 100%; height: 400px;"></iframe>
    </div>
    
    <div id="parent-footer">
        <p>Parent iframe footer</p>
    </div>
</body>
</html>

